Woodcarving began as a necessity in America and developed into an art. Because of the lack of other materials, early settlers were forced to make tools and utensils out of wood. At first, these articles were whittled with a knife, but when pioneer craftsmen set up their primitive shops most of them were fashioned on a lathe—a machine which holds an object and rotates it while it is being shaped by a tool.However, even after Massachusetts-born Thomas Blanchard designed a lathe which could turn irregular shapes—an innovation that, made possible mass production of gunstocks, shoe lasts, oblong and square wood ware—craftsmen who could use knife and chisel skillfully were still in demand. Some found ready employment in shops of cabinet-makers and chair-makers, while others carved decoys (捕兽的圈套). Still others specialized in creating shop signs, ship figureheads, or in decorating interior woodwork. A few even accepted commissions to make busts(半身像) of prominent citizens.36. This passage most likely came from a longer work about early American( ).37. The passage suggests that the early shops for making tools were( ).38. It can be inferred from the passage that, before Thomas Blanchard’s invention, lathes( ).39. Which of the following object was an important wood-working tool used by early American craftsmen?40. According to the passage, when wooden articles began to be mass-produced, what did many individual wood-workers do?
A.德国人
B.埃及人
C.美国人
D.英国人